This week’s ABC Four Corners episode investigated contamination at defence force sites and surrounding aquifers with chemicals called perfluoroalkyl acids or PFAAs. Around 18 sites are reported to be affected…

Drilling a groundwater well by hand, near Lahore, July 2017.
A_noina / Shutterstock29 août 2017

The controversial Shenhua Watermark coal mine in New South Wales recently cleared another hurdle along the way to being granted full approval to proceed. But there are major environmental risks which should still call the project into question.

The Queensland government wants companies to use waste water from coal seam gas extraction for useful purposes such as recharging aquifers. New CSIRO research shows that, with careful monitoring, it can be done.